Machine for making paper bottles.



E. H. JOHNSON & C.SCH1FFL. MACHINE FOR MAKmG PAPER BOTTLES.

' APPL|CAT| 0N FILED OCT. 9. 1915.

Patented July 25, 1916.

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E. H. JOHNSON & C. SCHIFFL.

.MACHINE FOR MAKING PAPER BOTTLES.

APPLlcAlpN FILED ocr. 9. 1915.

1,1 92,202. Patented July 25, 1916. l

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i STATES PATENT OFFICE;

EDWARD H. JOHNSON, OF NEW YORK, N. Y., AND CHARLES SCHIFFL, OFMONTCLAIR, `NEW JERSEY, ASSIGNORS TO GREENFIELD PAPER .BOTTLE COMPANY, FNEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

ratentea muy 25, i916.

Application filed October 9, 1915. Serial Noi 54,976.

useful Improvements in Machines for Mak` ing Paper Bottles, of which thefollowing is a specification.

The invention relates to machines for forming paper bottles.'

'The machine herein illustrated is particularly adapted for forming astraight tube of paper or similar material into bottle form.

In the'machine illustrated there is a moldd that conforms to the shapeof a bottle and around this mold there are arranged forming memberswhich may be pressed radially inwardly so as `to engage the paper of thetube at equi-distant' places around the tube in order to bend andconform the paper to `the mold. The members which are thus pressed maybe referred to as loop-forming members because they are spaced asufficient distance apart to permit the surplus-paper to assume the formof a loop in each of the interstices between them. There is alsoarranged about this mold another set of members which can be pressedradially inwardly and these last-mentioned members press the loops justreferred to down into the plaits or folds against the bottle form. Thissecond set of members may be referred to as plait-pressing membersbecausetheir function is to press the-loops into plaits or folds.

The loop-forming members and the plaitpressing members in effectconstitute one set of duplex forming members or forming arms. It hasbeen found to be of-great importance to have plait-pressing membersfollow the loop-forming members with a certain lag since the formationof the loopfis considerably influenced by the confines, especially in aradial direction, of the space in which it is to form and this space isdetermined by the relative position of the two sets of forming members.In other words, it is advisable that the loop-forming members performtheir function and that after the loop 'is formed the plait-pressingmembers are brought into operation to perform their pressing function.Unless this sequence of operations is properly taken into considerationthere is a chance that the resultmg loops would have a distortedappearance and thus the resulting article, to wit, the bottle body,would have an unsightly appearance and would be lacking in the properstrength. It should be noted, however, that should the lag become toogreat the loop instead of taking a round shape, .which is the preferableform, would become more or less pointed and this might cause a breakingalong an irregular line when the loop is pressed into a plait or fold.In the pressing of tubes to form paper bottles it has also been foundthat where each of the loop-pressing members engages the paper tube `atonly approximately one point the paper will Anot necessarily break'evenly along this pressing member and obviously it is advisable to havethe formation of the face of such pressing or forming membersubstantially conform to the bottle conformation.

An object of this invention is to provide a' machine which will avoidthe diiiiculties referred to and which will properly form and press theloops so that a paper tube can be changed in its configuration or shapeto conform to the shape of a bottle and with this object of constructingsuch a machine at least certain of the forming members are provided withadjustable or movable faces which will approximately follow the paperthat is in the tube for the whole length of the neck or throat, or both,and at all stages from the primary tube which may be a straight tube tothe ultimate resulting product, to wit, a bottle body.

In further pursuit of the purpose there is l provided means foroperating the duplex set of forming members in such a way as to give thedesired lag to the loop-pressing members thereof and fat the same timethe necessary leverage to force down the plaits or folds with suificientpressure to crease the edges. This object is accomplished by employingsuitably formed cam surfaces on the backs of the pressing members, whichcam surfaces are engaged by rollers mounted on a ring that surrounds themembers and which ring with rollers thereupon is capable of being movedvertically in a manner to force the pressing members inwardly.A It willbe evident that by choosing the cam conformation the leverage or thrustagainst the pressing members can be gradually increased as theresistance of the paper increases and the ca-m conformation can beconstructed so that the maximum pressure is at the end of the upwardtravel of the rollers.

As showing a specific embodiment of the invention reference is made tothe drawings forming a part of this specification and in which drawings,

Figure 1 is a vertical sectional view taken on the line 1-1 of Fig. 3.In Fig. 1 a portion of the frame has been omitted as this is notnecessary to an understanding of the invention. In this figure the fulllines indicate the position of the parts when the machine is ready for atube to be inserted prior to being pressed. The broken lines indicatethe position of the same parts as they first engage the tube which is tobe pressed.A The tube to be pressed is shown in this figure in positionon the mold. Fig. 2 is a view similar to that shown in Fig. l with theexception that the parts are shown in the position which'they occupy atthe end of the pressing operation. In Fig. 2 the paper tube has beenshown as being pressed so that it takes the form or configuration of abottle body. Fig. 3 is a plan view partially broken away and in thisfigure the loop-forming members are shown in the position which theyoccupy at the end of the loop-forming operation, while theplait-pressing members are shown in the position which they occupy asthey are pressing the loops to form plaits or folds. Fig. 4 shows theconstruction of the loopforming members. Fig. 5 is a plan view ofthemembers shown in Fig. 4. Fig. 6 is a vertical sectional view of apaper tube which is to be pressed so as to form a bottle .body. Figs. 7and 8 show respectively a side view partially broken away and a planView of the article which is made by the pressing, to wit, a bottlebody.

The frame of the machine comprises members designated as A and to thisframe there is secured and supported the inner forming mold B. This moldhas the shape or configuration of a bottle which is to be constructedand it comprises a body part l, a throat part 2 and a neck part 3;however, as the throat and neck parts mayl be considered as merging intoeach other they will be referred to as the throat, meaning the partwhich may be considered technically the throat or the parts whichcomprehend both the throat and the neck. In other words the word throatis to be broadly construed. There is. arranged about the mold B two setsof forming or pressing members or arms. One set of these members isdesignated by the reference character C and the function of said membersis to engage the outer sides of the tube X and press the latter inwardlyso that there will be formed between these members or arms the loops Y;these members C therefore are frequently referred toas loop-formingmembers. The other set of members is designated by the referencecharacter D and the function thereof is to press the loops Y inwardly soas to form plaits or folds. These members D are therefore frequentlyreferred to as plait-pressing members or arms.

It will be observed that the plait-pressing members are located betweenthe loop-forming members and that they lag behind the loop-formingmembers; in order words, the loops are first formed by the members C andthey are subsequently pressed by the members D into plaits. Thesemembers D should not lag too far behind the loopforming members C sincethey should confine to a certain extent the loops as they are beingformed. The tube X before being pressed is shown in Fig. G and it ispreferably in the form of a hollow cylinder and the shape after beingpressed is clearly shown in Figs. 7 and 8. The loop-forming members areshown in cross section in Fig. 4. Each of these members has twoyieldable or spring-pressed members 4 and 5.v

These members 4 and 5 are pivotally mounted upon the members C at 6 and7 respectively and they are pressed inwardly by the springs 4 and 5 sothat they can yield. The upper end 8 of the member 4 is free to beforced outwardly, so to speak, toward the loop-forming member C as thelatter is forced inwardly toward the mold and the lower end 9- of theyieldable member 5 is also free to be forced outwardly vtoward theloop-forming` member C as the latter is forced inwardly. The parts 4 and5 are arranged respectively opposite what may be known technically asthe neck 3 and the throat 2 of the bottle. The members 4 and 5 may beconsidered as adjustable, yielding or spring-pressed face members whichcan adapt themselves to the paper being pressed as the loop-formingmembers are forced toward the mold. These members 4 and 5 may also beconsidered as constituting a pair of knuckle members since their pivotalpoints G and 7 lie adjacent to each other.

By referring to Fig. 1 it will be observed that the members 4 engage thetube X for practically their full length and that similar remarks applyas to the yieldable member 5, and in Fig. 2 it will be seen that thesetwo same members engage the paper in the bottle body for their fulllength even when the loop-forming members C yha-ve been forced inwardlytheir full distanfce. It will be observed that the loop-forming membersor arms C are pivotally secured to the frame A by parts l0 while theplait-pressing members or arms D are secured to the frame by parts 11. Ahandle or lever E is fulcrumed on the frame at 12 and one end of thislever is connected t a link F which is in turn connected to a ring Gthat surrounds the pivoted members or arms C and D. This ring G carriesa number of rollers H some of which engage the cam formations 13 whichare on the sides of the loop-forming members C that are farthest remotefrom the mold, while the rest of said rollers engage the camformations'14 which are on the sides of the plait-pressing members Dthat are farthest remote from the mold. It will also be observed thatthe shape of the cam formations is such that as the ring Cr is forcedupwardly by the lever the upper ends of the pivoted members or arms Cand D will be forced toward the mold. lt will also be noted that the camformations 14 are arranged relatively to the cam formations 13 so thatthe plait-pressing members D lag behind the loop-forming members C,while the cam formations 13 permit a slight upward movement of the ringG so that the plait-pressing members can be forced home after theloop-forming members have been forced home, viz., to final positiontoward the mold. With this 'arrangement of the cams the two sets ofpivotally mounted members or arms in effect constitute what may beconsidered one set of duplex forming arms. e

The improvements herein set forth are not limited to the preciseconstruction and arrangement shown and described as they may be embodiedin various forms and modifications without departing from the spirit andscope of the invention. v

What is claimed is: 1. A paper bottle machine comprising in combinationwith a central bottle form or mold a set of loop-forming members and a 1set of plait-pressing members both of which sets are capable of movementin a radial direction. toward the bottle form, andan A adjustableface-member mounted upon each of the loop-forming members.

2. A paper bottle machine comprising in combination an interior formingmold having the configuration or shape of a bottle to be constructed, aplurality of loop-'forming members arranged about said' mold, aplurality of plait-pressing members arranged about saidl mold, and meansfor forcing said members toward said mold in such a manner that theplait-pressing members will lag behind the loop-forming members, each ofsaid loop-forming members having upon the part thereof which is oppositethe neck portion of the mold an adjustable face member which can adaptitself to the papertube as it is being pressed and up to the time thetube assumes its inal form.

3. A paper bottle machine comprising in combination with an innerforming mold,

forming members arranged about the forming mold, and means for forcingthe forming-members toward said mold, the mold belng arranged with theneck part uppermost and the forming-members being provided opposite theneck part of the mold with yieldable means having faces the upper endsof which move outwardly relative to the forming-members forced towardthe mold.

' 5. A paper bottle machine comprising in combination with'an -innerforming mold having the conformation or shape of a bottle to beconstructed and arranged with the neck or throat part thereofuppermost,a plurality of forming-members about the mold, and means for forcing theupper ends of the forming-members toward arranged as the latter are.

the mold, said forming members being provided with face members whichyield relative to the forming-members and which are arranged so thatthey can adapt themselves to the paper of a tube as the latter is beingpressed to the form of a bottle body with loops between the formingmembers.

6. A machine for making paper bottle bodies said machine comprising incombination an inner mold having the configurationl or shape of a bottleand arranged with the neck portion thereof uppermost, a series offorming arms about said mold'the lower ends of which forming arms arepivotally secured adjacent to the lower end of said forming mold, andmeans for forcing the u per ends of said forming arms toward said mold,said forming arms having upon their upper ends yieldable members whichare constructed and arranged so that the upper ends of the yieldablemembers can move outwardly relative to their companion arms as thelatter are forced toward the mold.

7. A machine for making paper bottles comprising in combination an innermold having the configuration or shape of a bottle and arranged with thesmall end of the -throat portion of the bottle uppermost, a series vofforming members arranged about said mold and having their lower endspivotally secured, and means for forcing the upper ends of said formingmembers toward said mold, each of said forming arms having on theportion opposite the throat portion of the mold a yieldable member whichis free to adapt itself to the sides of a pa'per tube on the mold priorto the tube being pressed and which yieldable member engages andconforms to the paper at the end of the pressing operation.

8. A machine for making paper bottles comprising in 'combination a moldhaving the configuration or shape of a paper bottle and arranged withthe throat portion uppermost, a series of members pivotally mounted attheirlowerends and arranged about said mold, and means for forcing theupper free ends of said members toward the throat portion of the mold,said members having yieldable face members which are arranged so thatthe free ends of said face members can be forced toward their companionforming members asthe latter are pressed inwardly toward the mold.

9. A machine for making paper bottles comprising in combination a moldhaving the configuration or shape of a bottle and arranged with the neckportion uppermost, a series of loop-forming members arranged about saidmold, a series of plait-pressing members arranged about said mold, whichloop-forming members and plait-pressing members are pivotally secured attheir lower ends, and means for forcing the free ends of said memberstoward the mold, the loopforming members each having a plurality ofyieldable face members which constitute a set of knuckle members, theupper and lower ends of which knuckle members are free to move towardthe companion forming members with which the kunckle members cooperateas the forming members are pressed toward the mold.

10. A paper bottle machine having a frame, a mold having theconfiguration or shape of a bottle secured to the frame and arrangedwith its neck or throat portion u ppermost, a series of arms orloop-forming members pivotally secured at their lower ends to the frame,a series of arms or plaitpressing members secured at their lower ends tothe said frame, both of which sets of arms are arranged about the mold,each arm being provided with a cam surface on the side farthest from themold, and pressing means comprising a ring with rollers mountedthereupon, which rollers are arranged to engage said cam surfaces as thering is moved upwardly to force the free ends of said arms toward themold, the cam conformations on the plait-pressing members being arrangedrelatively to the conformations on the loop-forming members so that theplaitpressing members will lag behind the loopforming members.

11. A machine for making paper bottles which machine comprises incombination a frame, a mold secured to said frame and which mold isconstructed so that it conforms to the shape of a bottle 'and isarranged with its neck or throat portion uppermost, a series ofloop-forming members arranged about said mold and having their lowerends pivotally secured to said frame, a series of plait-pressing membersarranged about said mold and pivotally secured to said frame, each ofsaid pivoted members of both of said sets having upon the side away fromthe mold a cam conformation, a ring surrounding said pivoted members,and means for moving said ring upwardly so as 'to force the free ends ofsaid pivoted members inwardly, said ring having upon it a number ofrollers which engage said cam conformations, the cam conformations ofthe loop-forming members being arranged relatively to the camconformations of the plaitpressing members so that the plait-pressingmembers will lag behind the loop-forming members as the ring is movedupwardly, said cam conformations being shaped so that the greatestpressure which can be exerted upon the forming members bythe ring takesplace at or near the end of the upward movement of said ring.

12. A machine for making paper bottles comprising in combination with aninner mold which has the conformation or shape of a bottle and which isarrangedI with the throat or neck portion of the mold uppermost of a setof pressing or forming armsv which are pivotally secured at their lowerends and arranged about said mold and provided on their outer sides withcam conformations, and pressing means comprising a ring that is-provided with rollers engaging said cam conformations, the camconformations being constructed so that as the ring is forced upwardlythe upper free ends of said arms will be force'd inwardly.

This specification signed and witnessed this 8th day of October, A. D.,1915.

EDWARD H. JOHNSON. CHARLES SCHIFFL.

Signed in the presence of- G. MCGRANN, M. F. KEATING.

